Electron micrograph of large IC neuron with dense VGLUT2+ axosomatic endings. a, VGLUT2+ terminals contain an electron-dense reaction product and surround the cell body of a large IC neuron which has highly folded (asterisk) nucleus and stacked rough endopl... Electron micrograph of large IC neuron with dense VGLUT2+ axosomatic endings. a, VGLUT2+ terminals contain an electron-dense reaction product and surround the cell body of a large IC neuron which has highly folded (asterisk) nucleus and stacked rough endoplasmic reticulum (arrowhead). The box shows the location of panel b. b, Higher-magnification view of synaptic terminals (T) that form asymmetric synapses (arrows). Scale bars: a, 5 μm; b, 1 μm. Tetsufumi Ito et al. J. Neurosci. 2009;29:13860-13869 ©2009 by Society for Neuroscience